drawBitmap nullpointerexception

Question

this is my class.. ı want to use it in my simple game's GameEngine.. but ı didn't understand the problem here.. it doesn't work..

public class Droid {

    private Bitmap      bitmap; 
    private int     x;      
    private int     y;      
    private boolean         touched;    
    private Speed       speed;
    private Paint       paint;

    public Droid(Resources resources, Bitmap bitmap, int x, int y)
        {
            this.bitmap = bitmap;
            this.x = x;
            this.y = y;

            // create droid and load bitmap
            bitmap = BitmapFactory.decodeResource(resources,
                    R.drawable.droid_1);

        }

              public void draw(Canvas canvas)
        {

            canvas.drawBitmap(bitmap, x - bitmap.getWidth() / 2,
                    y- bitmap.getHeight() / 2, paint);
        }



     }

when ı run code, ı see a nullpointerexception at draw() method... how can ı solve this? thanks for help...

Answer 1

// ı hope, ı solved this problem.. finally.. :)

public class Droid {

private Bitmap      bitmap; 
private int     x;      
private int     y;      
private boolean         touched;    
private Speed       speed;
private Paint       paint;

public Droid(Resources resources, Bitmap bitmap, int x, int y)
    {
        paint= new Paint();
//    this.bitmap = bitmap;   // delete this part, it will work..  :)))
    this.x = x;
    this.y = y;

        // create droid and load bitmap
        bitmap = BitmapFactory.decodeResource(resources,
                R.drawable.droid_1);

    }

          public void draw(Canvas canvas)
    {

        canvas.drawBitmap(bitmap, x - bitmap.getWidth() / 2,
                y- bitmap.getHeight() / 2, paint);
    }



 }